Separable and inseparable phrasal verbs

Inseparable phrasal verbs
Phrasal verbs consist of a verb and a particle. Give back = give (verb) + back (particle).
These cannot be separated if the verb is inseparable. Inseparable phrasal verbs can be two types: without an object and with an object.
Example: I wake up at 8 am every morning. (without an object) Incorrect: I wake at 8 am up
The TV cameras zoomed in on the winner’s face. (with an object) Incorrect: The TV cameras zoomed the winner’s face in on.
Without an object
With an object
Separable phrasal verbs

Phrasal verbs consist of a verb and a particle. Give back = give (verb) + back (particle).
These can be separated if the verb is separable. Example: Give my pen back. Note: Give back my pen is also correct. We are free to decide which sentence we prefer.
If we use a pronoun instead of my pen only Give it back is correct. We can’t say Give back it.
Try this short quiz to check if you have understood the concept.